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Open AccessArticle

Large Scale Process for Low Crystalline MoO3-Carbon Composite Microspheres Prepared by One-Step Spray Pyrolysis for Anodes in Lithium-Ion Batteries

Department of Engineering Chemistry, Chungbuk National University, Chungbuk 361-763, Korea
Nanomaterials 2019, 9(4), 539; https://doi.org/10.3390/nano9040539
Received: 22 February 2019 / Revised: 26 March 2019 / Accepted: 27 March 2019 / Published: 3 April 2019
(This article belongs to the Special Issue Nanocomposites for Environmental and Energy Applications)
This paper introduces a large-scale and facile method for synthesizing low crystalline MoO3/carbon composite microspheres, in which MoO3 nanocrystals are distributed homogeneously in the amorphous carbon matrix, directly by a one-step spray pyrolysis. The MoO3/carbon composite microspheres with mean diameters of 0.7 µm were directly formed from one droplet by a series of drying, decomposition, and crystalizing inside the hot-wall reactor within six seconds. The MoO3/carbon composite microspheres had high specific discharge capacities of 811 mA h g−1 after 100 cycles, even at a high current density of 1.0 A g−1 when applied as anode materials for lithium-ion batteries. The MoO3/carbon composite microspheres had final discharge capacities of 999, 875, 716, and 467 mA h g−1 at current densities of 0.5, 1.5, 3.0, and 5.0 A g−1, respectively. MoO3/carbon composite microspheres provide better Li-ion storage than do bare MoO3 powders because of their high structural stability and electrical conductivity. View Full-Text
Keywords: molybdenum oxide; carbon composite; spray pyrolysis; anodes; lithium-ion batteries molybdenum oxide; carbon composite; spray pyrolysis; anodes; lithium-ion batteries
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MDPI and ACS Style

Cho, J.S. Large Scale Process for Low Crystalline MoO3-Carbon Composite Microspheres Prepared by One-Step Spray Pyrolysis for Anodes in Lithium-Ion Batteries. Nanomaterials 2019, 9, 539.

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